Chapter 14 Arterial Duplex Following Intervention

Front 1

What is the difference between anatomic and extra anatomic graft?

Back 1

Anatomic follows the course of normal anatomy. Extra anatomic this placed where a vessel typically does not run.

Front 2

Type of graph materials***

Back 2

Synthetic or autogenous

Examples of synthetic polytetrafluoroethylene or Dacron

Example of autogenous, patients own artery or vein

Front 3

What are the two types of autogenous vein graphs?

Back 3

In- situ

Reversed

Front 4

Describe in-situ vein graft.

Back 4

Vain is left in place and proximal and distal and is connected to artery bypassing occlusion. And the valves are destroyed to allow for flow.

Front 5

Describe reversed vein grafts.

Back 5

The vein is removed and reinserted reversed to allow for flow so that the one-way valves do not have to be removed

Front 6

What is the indication for arterial duplex evaluation following intervention?

Back 6

Routine post-op surveillance or any other symptoms suggesting graft failure

Front 7

What is an reverse vein graft risk?

Back 7

The retained valves tend to be common sites for stenosis.

Front 8

What is a common risk with in-situ vein grafts?

Back 8

Any tributaries that were not ligated may become arterial venous fistulas

Front 9

What is an anastomosis?

Back 9

The area where the newly connected vessels connect

Front 10

What parts of a graft need to be evaluated?

Back 10

The inflow artery, proximal anastomosis, body of the graft, distal anastomosis, outflow artery, and any observed stenosis

Front 11

Interpretation of bypass grafts ***$$$@

Back 11

Front 12

Define angioplasty

Back 12

Surgical repair of a vessel

Front 13

How does a stent work?

Back 13

A stent is inserted through a catheter, into the stenosis, the stenosis is then opened up by a balloon, the stent is then deployed, expanded, and left there to keep the vessel open.

Front 14

What pattern of velocities is common in stents?***$$$@

Back 14

The velocity will usually be uniformly higher throughout the stent

Front 15

The 2:1 ratio rule can also be applied to?*"*

Back 15

Stents and grafts

Front 16

Treatments for aneurysm repair

Back 16

Open surgery w insertion of synthetic bypass graft

Endovascular aneurysm repair EVAR

Front 17

Describe an endovascular aneurysm repair

Back 17

A graft is placed inside of the aneurysm through a catheter and hooked into place with stents. The aneurysm is not replaced but simply excluded from the main artery

Front 18

What is an endo leak in a endovascular aneurysm repair?$$

Back 18

Flow within the aneurysm sac outside of the graft walls

Front 19

After an endovascular aneurysm repair what should be measured over time?***

Back 19

The diameter of the aneurysm sack should be measured as it should decrease over time. And enlarging sack is an indicator of a potential endoleak

Front 20

Types of endo leaks***$$$

Back 20

Front 21

Intravascular ultrasound IVUS

Back 21